(11C) Code guessing game

[Rogier]

I'm pretty sure my scoring isn't official Mastermind, but it's what I came up with.
The minor problem is the double scoring of digits of a correct colour AND in the right place. That could easily be solved (multiply by 10 and subtract from the total of correct digits). I just never bothered. I can live with a result "a correct, of which b in the right place".
The major problem is that I don't check whether a colour has already been tested and with what kind of result:
- not present > ignore for the rest of this turn,
- present, wrong place > ignore unless you find one in the right place, then adjust score
- present, in the right place > ignore for the rest of this turn
I don't remember why I chose this system (I didn't know all Mastermind rules? Couldn't fit in a better one?).
With it's limitations I still think it's one of my better programs and fun to play (and a challenge if you use 10 places, 9 colours, possibility of one or more colours appearing more than once).

Playing your program with a slightly different set of rules should be fun too. I'm going to give it a try.